[Physics] Magnetic flux inducing EMF

electric-currentelectromagnetismmagnetic fields

Faraday's law states that a coil with a larger magnetic flux will have a larger induced EMF, is this true or false?
The induced emf is directly proportional to the rate of change of magnetic flux through the coil.
So, does this mean that it doesn't matter how big the magnetic flux in the coil is?

Best Answer

Faraday's Law deals only with the time rate of change of the magnetic flux. So no, it doesn't actually matter how big the coil or magnetic field is when you consider solely the change in flux. However, if you are varying the magnetic field passing through a big coil, you will have a greater change in flux than that through a small coil, so the induced EMF would be bigger.